Heat-activated adhesive fastener bonds permanently with no sewing and it actually strengthens with washing. High-tech adhesive cross-links with fabric to ensure lasting attachment even with washing. Works on most fabrics including cotton and blends, polyester, fleece, suede, canvas and more. Perfect for fabrics that are thick or difficult to sew and for making quick repairs. Ideal for creating no-sew decor, clothing, costumes and seasonal accents.